clang-format: More eagerly wrap trailing return types.

Before:
  template <typename T>
  auto aaaaaaaaaaaaaaaaaaaaaa(T t) -> decltype(eaaaaaaaaaaaaaaa<T>(t.a)
                                                   .aaaaaaaa());

After:
  template <typename T>
  auto aaaaaaaaaaaaaaaaaaaaaa(T t)
      -> decltype(eaaaaaaaaaaaaaaa<T>(t.a).aaaaaaaa());

Also add a test case for a difficult template parsing case I stumbled accross.
Needs fixing.

llvm-svn: 239149

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Format/ContinuationIndenter.cpp b/clang/lib/Format/ContinuationIndenter.cpp
index 10a716c551b..91bc64b2b8b 100644
--- a/clang/lib/Format/ContinuationIndenter.cpp
+++ b/clang/lib/Format/ContinuationIndenter.cpp
@@ -329,7 +329,7 @@ void ContinuationIndenter::addTokenOnCurrentLine(LineState &State, bool DryRun,
       State.Column > getNewLineColumn(State))
     State.Stack.back().ContainsUnwrappedBuilder = true;
 
-  if (Current.is(TT_LambdaArrow))
+  if (Current.is(TT_LambdaArrow) && Style.Language == FormatStyle::LK_Java)
     State.Stack.back().NoLineBreak = true;
   if (Current.isMemberAccess() && Previous.is(tok::r_paren) &&
       (Previous.MatchingParen &&